LOCATION AND DESCRIPTION OF MAJOR COMPONENTS AND SYSTEMS (CONTINUED)
FUEL SYSTEM (CONTINUED)
The flame heater assembly is used to bring the engine fuel combus-
The flame heater solenoid opens to allow fuel from the fuel return
tion temperature up to operational level. The system is used during
system to be delivered to the flame heater box. The air pump
cold weather conditions or whenever the engine is hard to start. An
assembly delivers air from the engine turbocharger to the flame
ON/OFF switch on the driver’s control panel actuates the system.
heater box. There, the air/fuel mixture is atomized and electrically
ignited by the flame heater igniter. The resulting preheated air mix-
ture is then drawn into the cylinders for combustion.
TA309931
1-15
TM 9-2350-267-20
